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| author | Andy Grover | 2010-02-04 04:41:52 +0100 |
|---|---|---|
| committer | Andy Grover | 2010-09-09 03:12:03 +0200 |
| commit | ee4c7b47e46a9dea789aadb8279c8505f755b3ee (patch) | |
| tree | 6528275276bcd963b0d8fcd3fadac39e6d6c3e6f | |
| parent | RDS: Do not set op_active in r_m_copy_from_user(). (diff) | |
| download | kernel-qcow2-linux-ee4c7b47e46a9dea789aadb8279c8505f755b3ee.tar.gz kernel-qcow2-linux-ee4c7b47e46a9dea789aadb8279c8505f755b3ee.tar.xz kernel-qcow2-linux-ee4c7b47e46a9dea789aadb8279c8505f755b3ee.zip | |
RDS: Add a warning if trying to allocate 0 sgs
rds_message_alloc_sgs() only works when nents is nonzero.
Signed-off-by: Andy Grover <andy.grover@oracle.com>
| -rw-r--r-- | net/rds/message.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/net/rds/message.c b/net/rds/message.c index f4c3be0878e9..1f73a7358a8e 100644 --- a/net/rds/message.c +++ b/net/rds/message.c @@ -240,6 +240,7 @@ struct scatterlist *rds_message_alloc_sgs(struct rds_message *rm, int nents) struct scatterlist *sg_ret; WARN_ON(rm->m_used_sgs + nents > rm->m_total_sgs); + WARN_ON(!nents); sg_ret = &sg_first[rm->m_used_sgs]; sg_init_table(sg_ret, nents); |